Windmill



(N0 Model.)

G. TURNER.

WINDMILL.

No. 339,715. Patented Apr. 13, 1886.

' U'Nrrnn STATES I PATENT OFFICE.

GEORGE TURNER, OF KALIVIAZOO, MICHIGAN.

WINDMILL.

SPECIFCATION forming part ci' Letters Patent No. 339,715, dated April13, 1886.

Application filed January 531, 1886.

To all whom it may concern:

Be it known that I, GEORGE TURNER, a citizen of the United States,residing at Kalamazoo, county of Kalamazoo, State of Michigan, haveinvented a new and useful Power-findmill, of which the following is aspecification.

The object of this invention consists in the improved means ofconnecting working machinery to be driven by a single vertical rotatablepower-shaft of a windmill with said shaft, substantially as belowdescribed and claimed, to prevent the resistance of the workingmachinery from causing the windwheel to creep out of its true positionin the wind.

In the drawings forming apart of this specication, Figure l is anelevation, with the mill-head and tubular pendant in vertical section;Fig. 2, asection on line 2 in Fig. 3; Fig. 3, atop viewof the detailshown in Fig. 2 and Fig. 4, a part of Fig. 3, referred to by likeletters.

Referring to the letters marked on the drawings, B is an ordinarymill-head,with tubular pendant E, having swiveled bearings in the cap ofthe derriek F, in the usual manner. The horizontal wheel-shaft D hasbearings in the mill-head, and is provided with a rigidlysecured gear,a, which meshes with the gear c at the top of the vertical powenshaftfr. The pendant E has a vertical tubular eXtension, f, through which thepower-shaft@1 passes. To the lower end of the extensionfis rigidlysecured a laterally extending pinion support, It, or bridgetree. Theouter end is turned under and forms an upper and lower bearing for thepinion C, Fig. 1. The lower end of the power-shaft?I has apinion, A,meshing with the pinion C.

When the wind-wheel rotates, motion is transmitted from the wheel-shaftto pinion C. It will be observed that when the mill-head turns in itsswivcled bearings in the top ofthe derrick, which is caused by thewind-wheel shifting in the wind from one point of the compass toanother, the pinion C is swung around to a greater or less degree,describing some portion of a circle, according to the distance themill-head turns; hence said pinion C is always in meshing relation withthe gear A of the power-shaft fr.

It is desired that motion be transmitted from Serial No. 1E9,l77. (Nomodel.)

axle of the pinion O with the axle of the pinion t by means ofa flexibleshaft, P. I term this shaft llexible77 because it performs the functionin this construction which a flexible shaft proper would perform, andhence such. latter shaft might be employed. The shaft P has doublejoints at each end at right angles to each other, enabling it to yieldand swing in all necessary directions. The square end of the rod Padjustably slips in and out in the joint a', Fig. l, thus enabling theshaft to lengthen and shorten when necessary. To illustrate: if the geart were not inline with the vertical axis of the power-shaft r, then itwould be necessary that the shaft r be capable of lengthening andshortening.

During the operation-the upper end of the shaft P follows the sweepingmovement of the pinion C when the wheel changes in the wind. At the sametime the connected pinion C, shaft P, and gear t rotate together,imparting motion to the machinery having the fixed bearings below thesame, as though the pinion C had iixed bearings, and it was notnecessary for the wind-wheel to shift in the wind.

In Figs. 2 and 3 it will be seen that the pinion-support R has anoileup, u, formed in the top, with oil-passages e e leading to thebearing of the shaft lr and to thc upper bearing of the pinion C. Bykeeping the cup u filled with oil these bearings are alwayslubricated.Other details and general operation of powerwindmills are wellunderstood without further description here.

Having thus described my invention and its relation and operation withordinary powerwindmills, what I claim as new, and desire to secure byLetters Patent of the United States, 1s-

l. In apower-windmill, the combination of a power-shaft and its lowergear, said shaft passing through and being rotatable in a verti- ICO calextension fof the mill-head, la pinion-supshaft vof the mill, the lowerend of the firstport secured to saidA extension, extending lat namedshaft lloeing connected :by a universal x 5 erallyl therefrom andbearing a pinion lneshjoint with machinery having a grounded bearingwith the gear of the power'shaft, amaehineing-support, all combinedsubstantially as set 5 gear having a grounded bearing, and a shaftforth.

connecting with the axle of saidepinion and In testimony of theforegoing I have herethe latter-named gear, substantially as set -untosubscribed my name in presence of two 2o forth. c Witnesses.

2. In a power-Windmill, a shaft having a 1o pinion attached to its upperend by a universal joint, said pinion having bearings in a supportWitnesses:

connecting with the mill-head, andl meshing JOHN C. PERKINS, with a gearattached to the vertical power- LEVI HARRIS.

GEORGE TURNER.

